Ooh that exhaust looks great Matt! Was just about to PM you actually to say your Tee piece is welded up and in the post this evening
There was only one though wasn't there?!
A guy on another forum made some very valid comments about the actuators I'd made last weekend so I had a good rethink during the week.
The ones I had made would've leaked like mad and probably barely moved, or at best have moved unpredictably.
I did consider piston type actuators, but I reckon the stiction would make very small movements of the actuators unpredictable soooooooo......
I went back to my very first idea which is to make properly sealed vacuum capsules with diaphragms. This eliminates unwanted air getting into the system and also elinimates stiction.
Been beavering away all day to get these done but I'm really happy that they're done! The first thing I can properly cross off the list as it happens
Here's the various bits which go together to make one actuator:
Was gonna thread the ends of these rods and use two nuts to hold them in position, but then it occured to me it'd take about two minutes to just machine a pair of SHC screws and weld them on instead
So the diaphragms go in like so:
And attach to the rods like this:
To give this which just needs four peripheral bolts to hold it together.
Did think about directly tapping the top covers for the little push-in connectors but thought better of it in the end and welded a little boss on instead:
These ones will of course need to be mounted well away from the exhaust manifold!
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